Sheet material feeding device



I Jul 12; 1932.

H. ,1. HANAUER SHEET MATERIAL FEEDING DEVICE Filed June 19, 1930 5 Sheecs-Sheet 1 JNVENTOR BY M a 0127M ATTORNEYS y 1932- HJJ. HANAUER SHEET MATERBAL/ FEEDING DEVICE Filed June 19, 1930 5 Sheets-Sheet 2 Q i INVENTOR. l W.

a m I z x w m m 1 I ATTORNEYS y 1932- H. J. HANAUER SHEET MATERIAL FEEDING DEVICE 5 Sheets-Sheet 3 Filed June 19, 1950 INVENTOR. )ga/nam,

@414 fATTORNEYS Patented July 12, 1932 PATENT OFFICE HENRY J. HANAUER, OF MILWAUKEE, WISCONSIN SHEET MATERIAL FEEDING DEVICE Application filed June 19,

This invention relates to improvements in sheet material feeding devices.

The present invention lies in that field of mechanisms wherein sheets of material, such as cardboard, are fed from one instrumentality to another for the successive performance of various operations on individual sheets of the material. The specific embodiment of the invention herein described and illustrated contemplates the interposition of the improved sheet material feeding device in an apparatus between a printing mechanism and a glue applicator, it being essential that single sheets be passed or fed in an orderly, uninterrupted succession to the glue applicator.

It is, therefore, the primary object of the present invention to provide a device for guiding, gauging and singly passing or feeding sheets fed thereto, regardless of the manner in which the sheets reach said device, as to number and stacking.

A further object of the invention is to provide a sheet material feeding device which is fast and efficient in its operation, which may be adjusted or regulated for sheet material of different thickness, and which may be easily operated and controlled by a single operator. 7

A further object of the invention is to provide a sheet material feeding device which is of very simple construction, is strong and durable, and is well adapted for the purpos described.

WVith the above and other objects in view the invention consists of the improved sheet material feeding device, and its parts and combinations as set forth in the claims, and all equivalents thereof.

In the accompanying drawings in which the same reference characters indicate the same parts in all of the views:

Fig. 1 is a side view of a sheet conveyor and gluing mechanism showing the improved feeding device applied thereto;

Fig. 2 is a fragmentary opposite side view showing the drive arrangement for the feeding device;

Fig. 3 is a plan view of the showing in Fig. 1;

1930. Serial No. 462,261.

Fig. 4 is an enlarged detail sectional view taken on line 4.4; of Fig. 3;

Fig. 5 is a sectional view similar to Fig. 4 only showing the movable parts in different positions; and

Fig. 6 is a sectional view taken on line 6-6 of Fig. 4.

Referring now more particularly to the drawings it will appear that the numerals 12 indicate spaced-apart frame members having extending between their upper end portions an elongated horizontal guide apron 13 onto which sheets of material, such as cardboard, are placed or pushed.

Mounted between lower portions of said frame members is a glue box 14 from which glue is transferred by a series of rollers 15,

16, 17 and 18 to an upper applying roller 19 which engagesrand applies glue to the undersur'face of a sheet of material passing thereover. All of said rollers are elongated, extending transversely between the frame members 12 and one set of outer ends of the same carry meshing gears 20, 21, 22, 23 and 24 for transmitting rotation. Power to rotate all of said rollers is obtained from a source of power (not shown) through an endless chain 25 which drives a, sprocket 26 fast on the opposite end portion of the lower roller shaft 15.

The upper ends of the frame members 12 are formed with opposed adjustable bearings 27 positionedbetween the inner end portion of the apron13 and the glue applying roller 19, and the end portions of. a transverse shaft 28 are journaled in said bearings. A pair of sheet feeding cam members 29 are mounted faston intermediate portions of the shaft 28 in spaced relation.

One of the bearings 27 is formed with a socket bracket 30 in which is secured one end portion of a rod 31. Said rod 31 parallels the shaft 28 but is of considerably less length than the length of said shaft and its inner free end portion has secured thereon the socket portion 32 of a vertical guide member 32. Said guide member 32 has vertically movably mounted therein a gauge bar 33 which has depended from its lower end portion a gauge 34:, the front portion of said gauge carrying a roller 35. There is also depended from the vertical guide member a finger 36 between whose curved lower end port-ion 36 and the top surface of the apron 13, sheets of material are adapted to pass.

The guide portion of the vertical guide member 32 is of bifurcated form whereby a space is provided between the upper and lower portions thereof, and extending through said space, at right angles to the bar 33 is an arm 37 which is fixed at its inner end portion to said bar. Said arm 37 extends over the shaft 28 and is adapted to be engaged by a roller 38 on the outer end portion of a crank 39 which is mounted fast on said shaft 28 and when thus engaged, the movement of the crank will lift the bar 33, substantially raising the roller and gauge 34 above the bed or surface of the member 13, as shown in Fig. 5.

As before mentioned, the roller 15 is driven from a. source of power by the chain 25. There are journaled in the frame members 12 transverse shafts 40, 41 and 42. The shaft 40 has mounted fast on one end a gear 43; shaft 41 has mounted fast on the same end a gear 45, while shaft 42 has mounted fast on the same end a gear 47 The opposite ends of said shafts 40, 41 and 42 are journaled in suitable bearings. All of the gears 43, 45 and 47 carried by one set of ends of the shafts 40, 41 and 42 are inter-meshing. Also, gear 43 meshes with gear 21 which is driven by'the gear 20 fast on the driven roller 15. Hence, rotation is-imparted to all of said shafts 40, 41 and 42.

A foot treadle 49 is mounted on the floor or base adjacent the front portion of one of the frame members 12. The outer end portion of said foot treadle is engaged by the lower hooked end portion of a rod 50 and the upper end portion of said rod is connected with the outer end portion of a bell crank lever 51. he intermediate portion of said bell crank lever is pivotally attached to a portion of the frame member 12, as at 52. Projectingfrom the frame member 12 over said bell crank lever is a supporting member 53 to which the outer end portion of, said bell crank lever is y-ieldingly attached by a coiled spring-54.

An end portion of the shaft 42 is surround ed by a conventional type of expansion clutch indicate'dby the numeral 55, and said 'expansion clutch is connected with the driven gear 47. Said expansion clutch is formed with an outwardly projecting lug 56 which is ordinarily adapted to be releasably engaged by the inner end portion of said bell crank lever 51.

The opposite end portion of the shaft 42 carries fast thereon a sprocket wheel57 which isengaged by an endless chain 58. Said chain chain, and on said stud shaft there is a gear 61 meshing with a gear 62 on the shaft 28 to turn said shaft at desired intervals.

l/Vhen the foot treadle 49 is in its ordinary raised position the bell crank lever 51 connected thereto is disposed in the position shown in Figs. 1 and 3, engaging the lug 56 of the expansion clutch holding said expansion clutch against turning and causing a disengagement between the driving portion the crank 39 will be in a lowered position,

out of engagement with the arm 37 of the bar 33. Hence, the gauge 34 is spaced. sufficiently from the surface of the bed 13 that only a single sheet of card-board 63 can pass between said bed and the roller 35 carried by the gauge. l Vhen said sheet 63 has progressed forwardly suiiiciently far it is en gaged between the driven glue applying roller 19 and a friction roller 64 thereabove and is eventually propelled forwardly between other pairs of rollers 65 and 66.

During the passage of the sheet 63 forwardly other sheets may reach or be disposed on the bed below the cams 29. and rearwarclly of the gauge 34. The numeral 67 indicates a sheet superimposed in this position on a portionofthesheet 63 and the present device prevents undesired forward travel of a superimposed sheet 67 to a position over the glue applicator until such time as the single sheet being worked on has passed out of the way. As shown in Fig. 4 one or more of such superimposed sheets 67 will abut against the gauge 34 and will be prevented thereby from traveling forwardly.

However, after the sheet being worked on has passed along sufficiently farso. that its rear edge portion has passed by the gauge 34 and roller 35, this fact will be noted by the operator of the machine and he. wil-l'then step on the foot treadle 49, holding it down momentarily and then releasing it. This action will cause the engaging end of the bell crank lever 51 to move past the lug 56 of the expansion clutch 55, permitting expansion of interior mechanism within said clutch to cause a clutching engagement between the portion of the shaft 42 carrying the driven gear 47 and the major portion of said shaft carrying the sprocket wheel 57. The sprocket wheel will then turn and drive the upper shaft 28 through the chain 58 and gears 61 and 62. Turning movement of said shaft 28 will cause the crank 39 to turn from the position shown in Fig. 4 to the position in Fig. 5 engaging the arm 37 to lift the gauge bar 33 and gauge 34 carried thereby. At the same time the cams 29 will be moved around so that their portions 29' will engage the sheet 67 and push it forwardly. By this time the crank 39 will have released the arm 37 and permitted the gauge to drop and practically concurrently therewith the cams 29 will move to a position of disengagement with respect to the sheet 67 which is propelled forwardly by the rollers previously described. Hence, additional sheets reaching the station will be stopped by the gauge un til the operator is ready to have the same feed through.

Inasmuch as the operator only depresses the foot treadle 4C9 momentarily, the spring 54, when the treadle is released, will return the bell crank lever 51 to normal position and when the lug 56 of the expansion clutch has completed one revolution it will be stopped by said bell crank lever and the shaft 42 will be unclutched, stopping the drive to the shaft 31, so that after the cams 29 and lifting bar 33 have performed their functions in permitting in the passage of and feeding one sheet, said parts will remain in their positions of rest shown in Fig. 4; until the operator again depresses the foot treadle for the next sheet.

From the foregoing description it will be seen that the improved sheet material feed- 7 ing device is both simple and novel, and is well adapted for the purposes described.

What I claim as my invention is:

1. In a sheet material working apparatus, a bed having a forward portion for progressively receiving sheets in non-overlapping single file, and a rear overlapped sheet receiving portion, a gauge movably mounted adjacent said bed between the forward and rear portions thereof, a sheet propelling member adjacent the bed rear portion, and controlled means for reciprocating said gauge and for simultaneously imparting a movement to said propelling member to move a rearwardly disposed sheet forwardly a desired distance.

2. In a sheet material working apparatus, a bed having a forward portion for progressively receiving sheets in non-overlapping, flatly disposed single file, and a rear portion for receiving overlapped sheets, a gauge movably mounted adjacent said bed between the forward and rear portions and permitting the passage between it and the bed of a single thickness of flatly disposed sheet material, a movable sheet propelling member engaging, in certain positions, an overlapped sheet on the rear bed portion, and means for simultaneously moving said gauge and for selectively imparting a predetermined movement to said sheet propelling member.

3. In a sheet material working apparatus,

a bed having a forward portion for progressively receiving sheets in non-overlapping, flatly disposed single file, and a rear portion for receiving overlapped sheets, a gauge movab-ly mounted adjacent said bed between the forward and rear portions and permitting the passage between it and the bed of a single thickness of flatly disposed sheet material, a movable sheet propelling member engaging, in certain positions, an overlapped sheet on the rear bed portion, and manually controlled mechanical means for reciprocating said gauge and for simultaneously imparting a predetermined movement to said sheet propelling member to cause it to engage and propel forwardly in its plane an overlapped sheet on the rear bed portion.

4. In a sheet material working apparatus, a bed having a forward portion for progressively receiving sheets in non-overlapping single file, and a rear portion for receiving overlapped sheets, a gauge vertically movably mounted over said bed and separating the forward and rear portions thereof, the gauge in its lowered position being sufficiently spaced from the bed to permit the passage therethrough of a single thickness of sheet material, a revoluble shaft extending transversely over said bed adjacent the gauge, a cam fast on said shaft and arranged to engage, in certain positions, a sheet on said bed, means carried by said shaft for moving said gauge, a normally idling drive for the shaft, and manually operated means for causing a driving engagement between the shaft and the drive to turn the former a desired distance.

In testimony whereof I aflix my signature.

HENRY J. HANAUER. 

